<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>网易邮箱页面布局</title>
		<style>
			header,section,footer{
				height: 200px;
				border: 1px solid red;
			}
		</style>
	</head>
	<body>
		<iframe src="http://www.baidu.com">xixi</iframe>
		<header>
			<h2>标题</h2>
		</header>
		<section>
			<h2>标题</h2>
		</section>
		<footer>
			<h2>标题</h2>
		</footer>
		
	</body>
</html>
